The Personal Data Protection Board
("
Board"), in its Principle Decision
dated 22.12.2020 and numbered 2020/966
("
Principle
Decision"),
envisaged that the data controllers should establish mechanisms
enabling them to confirm the contact information of the data
subjects in order to prevent the personal data of the data subjects
from being sent to third parties through communication channels
such as mobile phone or e-mail, as contrary to Articles 4 and 12 of
the Personal Data Protection Law numbered 6698 ("
PDP
Law").
The Board determined that the data controllers who operate in
the sectors such as e-commerce, telecommunication, transportation,
and tourism, in order to provide documents containing personal data